KR20100033320A - Gas spring with bed table - Google Patents

Abstract

PURPOSE: A foldable dining table of a bed including a gas spring is provided to make the dining table for the bed smoothly folded and unfolded and to enable a user to easily operate the dining table using small strength. CONSTITUTION: A foldable dining table of a bed in which is equipped with a gas spring comprises: the gas spring(20) which is built in a hollow leg; a slider(32) which is assembled with a piston rod(30) of the gas spring; a lever(34) which is united with the slider and is exposed to the outside through a floating hole of the leg; one side hinge(42) of a leg rotary shaft which is connected to the lever; and an operating arm(40) in which the gas spring is operated when the leg is folded and unfolded.

Description

Folding dining table with a gas spring. {GAS SPRING WITH BED TABLE}

The present invention relates to a bed table, and more particularly to the operation of the table smoothly by the gas spring provided on the legs of the bed table, in particular to facilitate the operation of the table with a small force for patients with uncomfortable behavior A folding table for a bed provided with a gas spring for convenience.

In general, a bedside table is provided with a folding type so that it can be folded or unfolded on one side of the lower part of the bed. When the table is not in use, the table is folded under the feet and stored when it is needed. It is configured to be located above.

In particular, in the case of a patient bed, it is very useful for various activities such as eating or reading in the most comfortable posture, such as tilting or sitting at the upper body due to the inconvenience of movement.

Conventional bed table as described above has a discomfort that the sick patient is difficult to raise the legs to use the table and requires a relatively large force.

On the other hand, when folding the dining table, the legs are tilted, and the hands are suddenly flipped by the load of the dining table, which causes the hand to be injured and causes severe noise, and the dining table is damaged and broken due to the impact with the frame. There were faults. This causes problems such as anxiety, such as surprise or reluctant to use the patient.

The present invention is a folding table of the bed in which the dining table (3) provided on one side of the bed (1) can be combined with the folding leg (10) of the frame (2) to expand or fold the hollow table. A gas spring 20 embedded in the 10; A slider 32 assembled to the piston rod 30 of the gas spring; A lever 34 coupled to the slider and exposed to the outside through the flow hole 14 of the leg; Gas spring, characterized in that it is connected to the lever and coupled to the one side hinge 42 of the leg rotation shaft 12 to the gas spring is activated when the leg 10 is extended or folded It is to propose a folding dining table of the bed provided.

Alternatively, the present invention, in the folding table of the bed in which the dining table (3) provided on one side of the bed (1) can be combined with the folding leg (10) installed in the frame (2) to expand or fold the hollow table. A gas spring (20) embedded in the leg (10); A slider 32 assembled to the piston rod 30 of the gas spring; Coupled with the slider extends to the outside of the leg and is connected to the lower fixture 45 of the frame is characterized in that it consists of a cable (W) for operating the gas spring when the leg 10 is extended or folded.

Foldable dining table of the bed with a gas spring of the present invention to prevent the occurrence of noise by smooth operation when folding or unfolding the bed table, the operation is smooth and easy to operate the table with less power This has the effect of providing convenience.

And, in the present invention, when the leg is set up to use the table, the pressure of the gas spring acts quickly to operate the table while lifting, and when the table is folded, the table is operated while the gas spring is operated by the weight of the table and legs By folding slowly, there is an advantage of preventing sudden operation.

In another aspect, the present invention is the gas spring is operated by a cable connected to the slider, the operation is smooth, as well as the generation of vibration and noise, and the roller is spread over the cable as well as the operation of the gas spring more smoothly There are effects.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Embodiments of the present invention are provided to enable those skilled in the art to more easily understand the present invention. In describing the present invention, when it is determined that the detailed description of related known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. In the drawings, like reference numerals refer to like elements and have the same effect.

Example 1

1 and 2 are a perspective view and a front view schematically showing a folding dining table of a bed with a gas spring according to a preferred embodiment of the present invention, Figure 2a is an enlarged cross-sectional view "A" part of FIG.

Referring to the drawings, the present invention, the dining table (3) provided on one side of the bed (1) is combined with the folding leg 10 of the frame (2) in the folding table of the bed that can be expanded or folded and stored A gas spring (20) embedded in the hollow leg (10); A slider 32 assembled to the piston rod 30 of the gas spring; A lever 34 coupled to the slider and exposed to the outside through the flow hole 14 of the leg; It is connected to the lever and coupled to the one side hinge 42 of the leg rotation shaft 12 is characterized in that it consists of an operating arm 40 to operate the gas spring when the leg 10 is extended or folded.

In more detail, the leg 10 having a dining table 3 is installed at one rear of the bed 1, and the leg 10 has one side of the rotating shaft 12 of the bed frame 2. Combination is installed to enable the section rotation and the other side is bent into a 'b' shape, the table (3) is combined and configured to fold or unfold.

The leg 10 is made of a hollow tube, the gas spring 20 is built in the inner side of the rotating shaft 12 assembled with the frame (2).

The gas spring 20 is provided with a chamber space in which a leg is a cylinder body and a guide portion 28 through which the piston rod 30 penetrates on one side and a cover 29 on the other side is sealed with a compressed gas or Filled with a fluid or a mixture of compressed gas and fluid (hereinafter referred to as 'compressed gas'), the chamber is composed of the first and second chambers C1 and C2 by a piston 22 provided therein. do. In addition, the guide portion 28 is a general configuration such that the rod is in sliding contact so that the guide cap is coupled to both sides of the intermediate retainer to prevent leakage.

The piston 22 is provided with a predetermined gas passage connecting the first chamber and the second chamber, which is enlarged on one side of FIG. 2A, and the packing groove 23 having a predetermined width around the outer side of the piston. Is formed, a first chamber passage 24 is formed in the upper edge of the packing groove 23 in communication with the first chamber (C1) and the second chamber in communication with the second chamber (C2) at the lower edge Passages 25 are each formed.

In addition, the piston is formed at a predetermined interval from the inner circumference of the cylinder body, that is, the legs to provide a gas passage (G1, G2) so that the internal gas can pass, but the gas passage (G1, G2) is packed The grooved packing 26 is configured to alternately open or shut while operating up / down in accordance with the operation of the piston.

Here, the first chamber passage 24 is formed larger than the second chamber passage 25, which means that the operating speed varies depending on the operating direction of the piston and the rod.

A lever 34 is coupled to the slider 32 which is assembled at the end of the rod 30, and the lever forms a connection portion 25 to which one side is coupled to the operation arm 40, and the operation arm is at the other side. It is connected to the hinge 42 of this frame. The slider 32 is formed with a rod groove 33 into which a rod is inserted, and a lever is coupled to one side thereof.

The lever 34 is exposed to the outside of the leg through the flow hole 14 of the leg, the connection portion 35 with the working arm is preferably connected to the normal ball and ball seat or hinge to smooth the operation. Do.

The operation arm 40 is installed side by side with the leg on one side of the leg, in particular by varying the interval between the rotation axis 12 or the hinge 42 relative to the connecting portion 35 to be installed in accordance with the operation of the leg The slider is activated to activate the gas spring.

The folding dining table of the bed provided with the gas spring according to the first embodiment of the present invention configured as described above operates as follows.

3 is a cross-sectional view illustrating an operating state of a folding dining table of a bed provided with a gas spring according to a first embodiment of the present invention, and FIGS. 3A and 3B are enlarged views of an “A” part of FIG. 3. .

First, as shown in FIG. 2 and FIG. 3, in the state where the leg 10 is standing, most of the compressed gas is located in the first chamber C1 by the piston descending. Then, when the table is pushed up and folded, the working arm 40 raises the slide while moving the piston to the first chamber while the legs are inclined about the rotating shaft 12. In other words, as shown in FIG. 3A, the legs are inclined so that the distance between the connecting portion 35 and the hinge 42 of the operating arm 40 is farther than the distance between the rotating shafts 12, and as in FIG. 3B, the hinge and The gap between the joints is getting closer, and the slider is activated.

Here, the packing 26 is in close contact with the side of the second gas passage G2 to block the passage G2, and at the same time, the compressed gas in the first chamber passes through the first chamber passage and the first gas passage G1. By only passing through the narrow second chamber 25, the flow of the compressed gas is relatively delayed, as well as the piston and the rod is slowly operated. In other words, it slowly descends while moving slowly by the weight of the table and legs.

Preferably, the end portion of the rod 30 is partially inserted into the rod groove 33 in a state where the leg is up, and is spaced at a predetermined interval, which is in front of the bed under the load of the table in the state where the leg is up as shown in FIG. 2. On the contrary, when the table is folded back when the table is folded, the gas spring does not operate while the slide 32 is raised and the rod is fully inserted into the rod groove 33. That is, the gas spring is operated as the center of gravity of the dining table moves from the front of the rotating shaft 12 to the rear, and when the legs are upright and close to the vertical, it does not take much force to move the plate, so it is lightly pushed backward. I would have to.

Next, when the leg is raised to use the plate in reverse, if the plate or the leg is slightly lifted, the gas pressure in the first chamber C1 acts on the piston 22 and the piston is pushed into the second chamber to lift the leg. The lifting force acts and at the same time the working arm is interlocked. That is, the pressure of the gas acting on the piston is smaller than the cross-sectional area of the first chamber C1 by the diameter difference of the rod 30 than the cross-sectional area of the second chamber, so that the force acting on the piston to the second chamber is reduced. You can easily raise your legs by force.

Here, the packing 26 of the piston is in close contact with the first passage (G1) to block the passage (G1) so that the compressed gas of the second chamber flows into the second chamber passage 25 and the second gas passage (G2). Therefore, the piston and the rod can be quickly moved to the first chamber through the relatively large first chamber passage 24, and the plate and the leg can be lifted lightly.

[Example 2]

4 and 4a is a front view and an operating state diagram showing, in partial cross section, a main part of a folding dining table of a bed provided with a gas spring according to a second embodiment of the present invention.

Referring to the drawings, the folding table of the bed with a gas spring according to the second embodiment of the present invention, the connecting bar 34 is coupled to the cylinder body 21 of the gas spring operating arm 40 And a slider 32 inserted into the inside of the leg is stopped by the inner stopper 16.

Specifically, as mentioned above as the first embodiment, a leg 10 having a dining table 3 is installed at one side of the bed 1, and the leg is formed on the axis of rotation of the frame 2 ( In combination with 12) it is installed to enable section rotation. A gas spring 20 is built into the leg, and the gas spring has a piston 22 built into the cylinder body 21, and the rod 30 of the piston extends outward through the guide part 28 on one side. The slider 32 is coupled to the end of the rod 30. The gas spring is installed to the inside of the leg, as shown in the figure so that the slider is fixed by the stopper 16, the lever 34 is attached to one side of the cylinder body 21 and the operating arm 40 to the lever It is a connected configuration.

Next, to describe the operating state, in order to keep the table folded in the standing state of the leg 20, when the leg 10 is tilted to one side rear, the operating arm 40 pushes up the cylinder body and at the same time the first chamber Compressed gas of (C1) is moved to the second chamber (C2), at which time the second gas passage (G2) is blocked by the packing 26 through the relatively narrow second chamber passage (25) Little by little, the legs slowly descend.

On the contrary, when the leg is lifted to use the table, the piston body is engaged with the working arm and is pulled down, where the second chamber is blocked even if the packing 26 blocks the first gas passage G1. The compressed gas is rapidly moved to the relatively large first chamber passage 24 through the second chamber passage C2 and the second gas passage G2, so that the operation of the legs is smooth. Also, due to the difference in gas pressure between the first chamber and the second chamber acting on the piston, the leg can be raised with a small force due to the high gas pressure in the first chamber. Of course, the piston rod 30 is fixed by a slider so that the cylinder body is lowered.

Example 3

Figure 5 is a cross-sectional view showing the main part of the folding dining table of the bed with a gas spring according to a third embodiment of the present invention, Figures 5a and 5b is an operating state diagram.

Referring to the drawings, the present invention, the dining table 3 of the bed 1 is combined with the folding leg 10 installed on the frame 2, combined with the folding leg 10 installed on the folding table can be stored In the hollow, the gas spring (20) embedded in the leg (10); A slider 32 assembled to the piston rod 30 of the gas spring; Coupled with the slider extends to the outside of the leg and is connected to the lower fixture 45 of the frame is characterized in that it consists of a cable (W) for operating the gas spring when the leg 10 is extended or folded.

The above is described in more detail as follows.

The folding dining table of the bed with a gas spring of the present invention is provided with a leg 10 having a dining table 3 on one side of the bed 1, which is coupled to the rotating shaft 12 of the frame 2. It is installed so that the section can be rotated, the bridge is built with a gas spring (20). The gas spring has a piston 22 built into the cylinder body 21, the rod 30 of the piston extends to the outside through the guide portion 28 on one side, the slider at the end of the rod 30 32 are combined. The gas spring is installed so that the piston rod 30 is inserted into the inside of the leg as shown in the drawing, and the lower end of the cylinder body 21 is in contact with the central axis 12.

In particular, the cable (W) coupled with the slider 32 extends to the outside through one open passage of the leg and is connected to the fastener 45 below the rotating shaft, and the fastener 45 is located at the bottom of the frame 2. To support the cable.

In addition, the present invention is further provided with a roller 50 through which the cable (W) hangs on the end of the leg (10). This is a risk of scratching or damaging the cable if it is directly over the end of the leg.

The roller 50 guides the operation while the cable is interposed between the rotary shaft 12 and the fixture 45 to allow the cable to operate more smoothly. In addition, the cable groove 18 is preferably formed in the leg so as not to interfere with the cable.

As described above, the folding dining table of the bed equipped with the gas spring of the present invention is operated as follows.

First, in order to keep the table folded in the standing state of the leg 20, when the leg 10 is tilted to one side rear, the cable W is pulled from the lower end of the cylinder body to the end of the leg while pulling the slider.

Here, the roller 50 is provided at the end of the leg so that the cable is hung, the roller 50 is corrected by the angle of the cable bent to smoothly operate as well as to prevent damage. .

Subsequently, if the leg is continuously tilted, the slider 32 is operated to lower the piston while the cable W is pulled by the roller while the leg rotates about the rotation axis.

At this time, the compressed gas of the first chamber (C1) is moved to the second chamber (C2) through the gas passage of the piston, and the packing 26 blocks the second gas passage (G2) and at the same time relatively As the compressed gas moves through the narrow second chamber passage 25, the legs are gradually lowered to fold backwards.

Conversely, when the leg 10 is lifted to use the dining table of the bed, the compressed gas pressure of the first chamber C1 is greater than the gas pressure of the second chamber due to the difference in cross-sectional area with the second chamber C2. As a result, the piston 22 is pushed back and the force acts to lift the leg easily.

At this time, even if the packing 26 blocks the first gas passage G1, the compressed gas of the second chamber passes through the second chamber passage C2 and the second gas passage G2, and the first chamber passage is relatively large. By moving quickly to (24), the operation of the legs is smooth.

As described above, the folding table of the bed equipped with the gas spring of the present invention is accompanied with the following effects.

The force acting on the gas spring 20, that is, the load is different depending on the inclination angle at which the leg 10 is inclined. For example, when the legs are tilted backwards from the vertical state at 60 degrees, the load of the plate is greater and the operating speed of the piston is faster.

Herein, the present invention fills the chamber of the gas spring with a proper ratio of compressed gas and fluid so that the gas spring with respect to the inclination angle of the leg is operated at an appropriate speed. For example, referring to FIG. 3, when the leg is inclined backward while reaching 30 degrees, the compressed gas lighter than the fluid moves to the gas passage first, and then the legs gradually descend to the angle of about 60 degrees. When is reached, the fluid passes through the gas passage along with the gas. In other words, when the leg is about 30 degrees, the load of the plate and the leg is relatively small, so that the process proceeds slowly by the flow of gas first passing through the gas passage, and the relatively large load acting at about 60 degrees causes the fluid to flow through the gas passage. It will work smoothly while passing through.

In addition, the gas spring of the present invention lubricating the piston and the packing by the fluid of the chamber while the cylinder body is upright or inclined, so that the operation is very smooth and the failure rate is low and the service life can be significantly extended.

1 and 2 are a perspective view and a front view schematically showing a folding dining table of a bed equipped with a gas spring according to a preferred embodiment of the present invention.

FIG. 2A is an enlarged cross-sectional view of a portion “A” of FIG. 2.

Figure 3 is a cross-sectional view showing the operating state of the folding dining table of the bed with a gas spring according to the first embodiment of the present invention.

3A and 3B are enlarged views of the operation portion “A” of FIG. 3.

4 and 4a is a front view and an operational state diagram showing, in partial cross section, a main part of a folding dining table of a bed with a gas spring according to a second embodiment of the present invention.

Figure 5 is a cross-sectional view showing the main part of the folding dining table of the bed with a gas spring according to a third embodiment of the present invention.

5a and 5b is an operating state of the folding dining table of the bed with a gas spring of the present invention according to a third embodiment of the present invention.

Claims (4)

In the foldable dining table of the bed in which the dining table 3 provided on one side of the bed 1 is combined with the folding leg 10 of the frame 2 so that it can be expanded or folded and stored. A gas spring 20 embedded in the hollow leg 10; A slider 32 assembled to the piston rod 30 of the gas spring; A lever 34 coupled to the slider and exposed to the outside through the flow hole 14 of the leg; Gas spring, characterized in that it is connected to the lever and coupled to the one side hinge 42 of the leg rotation shaft 12 to the gas spring is activated when the leg 10 is extended or folded Folding dining table with a bed. The method of claim 1, The connecting bar 34 coupled to the cylinder body 21 of the gas spring is connected to the working arm 40, Folding table of the bed with a gas spring, characterized in that the slider 32 is inserted into the inside of the leg is stopped by the inner stopper (16). In the foldable dining table of the bed in which the dining table 3 provided on one side of the bed 1 is combined with the folding leg 10 installed in the frame 2 so that it can be expanded or folded and stored. A gas spring 20 embedded in the hollow leg 10; A slider 32 assembled to the piston rod 30 of the gas spring; The gas spring, which is coupled to the slider and extends to the outside of the leg and is connected to the lower fixture 45 of the frame, comprises a cable W for operating the gas spring when the leg 10 is extended or folded. Folding dining table with fully equipped bed. The method of claim 3, Folding table of the bed with a gas spring, characterized in that the end of the leg is further provided with a roller (50) to extend the cable (W).

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